/*1200>=pc>=992 大屏，分辨率小的电脑屏幕*/
@media screen and (min-width: 1024px) and (max-width: 1199px) {
  .wrap {
    width: 100%;
    padding: 0 20px;
  }
  .page-item-box {
    border-bottom: 1px #999 solid;
    padding: 10px 0;
  }
  .header-center {
    height: 80px;
  }
  .header-center .logo {
    width: 240px;
  }
  .header-center .nav-box .menu li {
    margin: 0 13px;
  }
  .product {
    width: 100vw;
    background-color: #FFF;
    padding: 20px 0;
  }
  .science .card-list {
    padding: 20px;
  }
  .science .card-list .card-item {
    width: 240px;
  }
  .news {
    padding: 20px 0;
  }
  .news .news-list {
    padding: 20px;
    align-items: flex-start;
  }
  .news .news-list .news-lf {
    flex: 1;
  }
  .news .news-list .news-lf .news-item {
    width: 350px;
  }
  .news .news-list .news-rt {
    width: 240px;
  }
  .crumbs {
    padding: 20px;
  }
  .pageDiv {
    padding: 0 20px;
    align-items: flex-start;
  }
  .pageDiv .sidebar {
    width: 200px;
    border-bottom: solid 1px #d7d7d7;
  }
  .pageDiv .product-pages-list {
    width: 768px;
  }
  .pageDiv .product-pages-list .card-item {
    width: 230px;
  }
  .pageDiv .page-number-box {
    width: 100%;
    margin: 0 auto;
    padding: 20px 0 40px;
  }
}
/*768<=pad<992 中屏，piad的尺寸*/
@media screen and (min-width: 768px) and (max-width: 1023px) {
  .wrap {
    width: 100vw;
    padding: 0 15px;
  }
  .page-item-box {
    border-bottom: 1px #999 solid;
    padding: 10px 0;
  }
  .header-center {
    height: 60px;
  }
  .header-center .logo {
    width: 180px;
  }
  .header-center .nav-box .menu li {
    margin: 0 5px;
    height: 45px;
  }
  .header-center .nav-box .menu li a {
    height: 40px;
    line-height: 40px;
    display: block;
    font-size: 14px;
  }
  .product {
    width: 100vw;
    background-color: #FFF;
    padding: 20px 0;
  }
  .science .card-list {
    padding: 20px;
  }
  .science .card-list .card-item {
    width: 170px;
  }
  .news {
    padding: 20px 0;
  }
  .news .news-list {
    padding: 20px;
    align-items: flex-start;
    flex-direction: column;
  }
  .news .news-list .news-lf {
    width: 100%;
    margin-bottom: 20px;
  }
  .news .news-list .news-lf .news-item {
    width: 46vw;
  }
  .news .news-list .news-rt {
    width: 100%;
    margin: 0;
  }
  footer {
    padding: 20px 0 0;
  }
  footer .footer-bq {
    width: 100%;
    font-size: 14px;
    line-height: 60px;
    color: #737373;
    border-top: #737373 2px solid;
    margin-top: 20px;
  }
  footer .footer-list {
    flex-direction: column;
    align-items: flex-start;
  }
  footer .footer-list .footer-nav {
    width: 100%;
    min-height: 200px;
    margin-left: 0;
  }
  .crumbs {
    padding: 10px 20px;
  }
  .pageDiv {
    padding: 0 10px;
    align-items: flex-start;
    display: block;
  }
  .pageDiv .sidebar {
    width: 100%;
    border-bottom: none;
    display: flex;
  }
  .pageDiv .sidebar .sidebar-nav-top {
    display: none;
  }
  .pageDiv .sidebar .sidebar-nav {
    width: 100%;
    display: flex;
    margin: 10px auto;
  }
  .pageDiv .sidebar .sidebar-nav .sidebar-nav-item {
    width: 25%;
    border-bottom: none;
  }
  .pageDiv .sidebar .sidebar-nav .sidebar-nav-item a:hover {
    color: #2d70c4;
  }
  .pageDiv .product-pages-list {
    width: 100%;
    justify-content: space-between;
  }
  .pageDiv .product-pages-list .card-item {
    width: 240px;
    margin-right: 0;
  }
  .pageDiv .page-number-box {
    width: 100%;
    margin: 0 auto;
    padding: 10px 0 20px;
  }
}
/*phone<768  小屏，手机的尺寸*/
@media screen and (max-width: 767px) and (min-width: 200px) {
  .wrap {
    width: 100vw;
    padding: 0 15px;
  }
  .page-item-box {
    border-bottom: 1px #999 solid;
    padding: 10px 0;
  }
  .page-item-box .title {
    font-size: 1.125rem;
    line-height: 1.625rem;
  }
  .page-item-box .text {
    font-size: 0.75rem;
    line-height: 1.25rem;
  }
  .page-item-box .more {
    width: 5.625rem;
    height: 2.1875rem;
    font-size: 14px;
    border-radius: 2px;
    background-color: transparent;
    color: #999 !important;
  }
  .card-item .img {
    width: 100%;
  }
  .card-item .info {
    padding: 0.625rem;
    background-color: #fff;
  }
  .card-item .info .title {
    font-size: 1rem;
    line-height: 1.375rem;
    color: #333333;
  }
  .card-item .info .link {
    margin: 0.625rem auto;
  }
  .card-item .info .text {
    line-height: 1.375rem;
  }
  .header-center {
    height: 50px;
  }
  .header-center .logo {
    width: 160px;
  }
  .header-center .nav-box {
    flex: 1;
    height: 100%;
    position: relative;
  }
  .header-center .nav-box .menu-button {
    width: 50px;
    height: 50px;
    position: absolute;
    top: 0;
    right: 0;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .header-center .nav-box .menu-button .iconfont {
    font-size: 30px;
    color: #333;
  }
  .header-center .nav-box .menu {
    display: none;
    position: absolute;
    top: 50px;
    left: -175px;
    box-shadow: 0px 3px 10px 0px rgba(0, 0, 0, 0.15);
  }
  .header-center .nav-box .menu li {
    width: 100vw;
    margin: 0;
    background: #FFF;
    text-align: left;
  }
  .header-center .nav-box .menu li a {
    width: 95%;
    height: 50px;
    line-height: 50px;
    display: block;
    font-size: 14px;
    text-align: left;
  }
  .header-center .nav-box .menu li:hover {
    border-bottom: none;
    color: #333;
  }
  .header-center .nav-box .menu li:hover a {
    color: #333;
  }
  .header-center .nav-box .menu-show {
    display: block;
  }
  .product {
    width: 100vw;
    background-color: #FFF;
    padding: 1rem 0;
  }
  .product .product-list {
    padding: 4px 0;
    flex-wrap: wrap;
  }
  .product .product-list .product-item {
    width: 25%;
    padding: 10px;
  }
  .product .product-list .product-item span {
    font-size: 12px;
  }
  .science {
    width: 100vw;
    background-color: #f5f5f5;
    padding: 1rem 0;
  }
  .science .card-list {
    padding: 15px 10px;
    flex-wrap: wrap;
  }
  .science .card-list .card-item {
    width: 10.625rem;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 10px;
  }
  .news {
    padding: 1rem 0;
  }
  .news .news-list {
    padding: 1rem 10px;
    align-items: flex-start;
    flex-direction: column;
  }
  .news .news-list .news-lf {
    width: 100%;
    margin-bottom: 1rem;
  }
  .news .news-list .news-lf .news-item {
    width: 10.625rem;
    padding: 10px;
  }
  .news .news-list .news-lf .news-item .img {
    margin-bottom: 10px;
  }
  .news .news-list .news-lf .news-item .img img {
    width: 100%;
  }
  .news .news-list .news-lf .news-item .info .title {
    font-size: 1rem;
    line-height: 1.75rem;
  }
  .news .news-list .news-lf .news-item .info .time {
    font-size: 0.75rem;
    line-height: 1.625rem;
  }
  .news .news-list .news-lf .news-item .info .text {
    font-size: 0.875rem;
    line-height: 1.375rem;
  }
  .news .news-list .news-rt {
    width: 100%;
    margin-left: 0;
  }
  .news .news-list .news-rt .news-item {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
  }
  .news .news-list .news-rt .news-item .info .title {
    font-size: 1rem;
    line-height: 1.75rem;
  }
  .news .news-list .news-rt .news-item .info .time {
    font-size: 0.75rem;
    line-height: 1.625rem;
  }
  .news .news-list .news-rt .news-item .info .text {
    font-size: 0.875rem;
    line-height: 1.375rem;
  }
  footer {
    padding: 1rem 0 0;
  }
  footer .footer-bq {
    font-size: 12px;
    line-height: 3.125rem;
    color: #737373;
    border-top: none;
    margin: 0;
  }
  footer .footer-list {
    align-items: flex-start;
    flex-direction: column;
  }
  footer .footer-list .footer-nav {
    display: block;
    margin-left: 0;
    width: 100%;
    padding: 0 15px;
  }
  footer .footer-list .footer-nav li ul {
    width: 100%;
    height: 40px;
    display: flex;
  }
  footer .footer-list .footer-nav li ul li {
    height: 30px;
  }
  footer .footer-list .footer-nav li .font-nav-name {
    font-size: 12px;
    line-height: 30px;
    color: #ffffff;
  }
  footer .footer-list .footer-nav li a {
    color: #737373;
    font-size: 12px;
    line-height: 30px;
  }
  footer .footer-list .footer-nav li a:hover {
    color: #fff;
  }
  footer .footer-list .foot-qrcode-box {
    width: 100%;
    min-height: 100px;
    margin: 10px 0;
  }
  footer .footer-list .foot-qrcode-box .phone {
    width: 310px;
  }
  footer .footer-list .foot-qrcode-box .font-qr-info {
    margin: 30px 0 0;
    align-items: flex-start;
  }
  footer .footer-list .foot-qrcode-box .font-qr-info .info-box {
    width: 14.375rem;
  }
  footer .footer-list .foot-qrcode-box .font-qr-info .info-box .title {
    font-size: 16px;
    line-height: 30px;
    letter-spacing: 1px;
    color: #ffffff;
  }
  footer .footer-list .foot-qrcode-box .font-qr-info .info-box .input-box {
    width: 100%;
    height: 40px;
    background-color: #fff;
    padding: 0 10px;
    font-size: 14px;
    color: #bfbfbf;
    margin-top: 10px;
  }
  footer .footer-list .foot-qrcode-box .text {
    font-size: 14px;
    line-height: 36px;
    letter-spacing: 1px;
    color: #737373;
  }
  .index-banner-box {
    width: 100%;
    height: 50px;
    display: block;
  }
  .crumbs {
    padding: 10px 20px;
  }
  .pageDiv {
    padding: 0 10px;
    align-items: flex-start;
    display: block;
  }
  .pageDiv .sidebar {
    width: 100%;
    border-bottom: none;
    display: flex;
  }
  .pageDiv .sidebar .sidebar-nav-top {
    display: none;
  }
  .pageDiv .sidebar .sidebar-nav {
    width: 100%;
    display: flex;
    margin: 10px auto;
  }
  .pageDiv .sidebar .sidebar-nav .sidebar-nav-item {
    width: 25%;
    border-bottom: none;
    font-size: 13px;
  }
  .pageDiv .sidebar .sidebar-nav .sidebar-nav-item a:hover {
    color: #2d70c4;
  }
  .pageDiv .product-pages-list {
    width: 100%;
    justify-content: space-between;
  }
  .pageDiv .product-pages-list .card-item {
    width: 10.625rem;
    margin-right: 0;
  }
  .pageDiv .page-number-box {
    display: none;
  }
}